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Aug'. 25, 1925. 1,550,893 s. ELLlo'rT l 4PRINTING MAcgINE Fired Dec. 24,1920 e sheets-sheet* 1 Y1 ff 3L. J

.13 Aug. 25, 1925. 1,550,893 -g s. ELLIQTT PRINTING MACHINE Filed Dee.24, 1920 6 sheets-sheet 2 j l i 20 [yf Y a? 230 2er Aug. z5, 1925.

Filed Dec. '24, 1920 6 Sheets-Sheet 3 fTIM. WWEMTHM Aug. z5, 1925.1,550,893

S. ELLIOTT PRINTING MACHINE Filed Dec. 24, 1920 6 Sheets-Sheet 4 Aug.z5, 192s. 1,550,893

. IS. ELLIOTT PRINTING MACHINE Filed De. 24, 1920 e sheets-sheet e lllllllfllll'lllllll'l Hmmm itil,

e au u rl Patented Aug. 25, 1925'.

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PATENT OFFICE.

STERLING ELLIOTT, OF CAMBRIDGE, MASSACHUSETTS; HARRIET AD-ELL ELLIOTT,EXECUTRIX OF SAID STERLING ELLIOTT, DECEASED, ASSIGNOR TO TI-IE ELLIOTTADDRESSING MACHINE COMPANY, OF CAMBRIDGE, MASSACHUSETTS, A CORP`0RA TIONOF MAINE.

PRINTING MACHINE.

Application filed December 24, 1920. Serial No. 432,961.

To all whom t may concern.'

Be it known that I, STERLING ELLIOTT, a citizen of the United States,residing at Cambridge, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in Printing Machines, ofwhich the following is a specification.

This invention relates to a machine for printing by the use of aplurality of stencils which are adapted to be successively moved intoprinting position and is especially adapted for such work as printingupon relatively wide and long sheets, as pay-rolls, and relativelynarrow and long sheets as mailer lists and also for printing upon suchmatter as envelopes, magazines and the like.

Heretofore the width of a paper sheet that could be printed upon by amachine of the type above set forth was restricted; and the position ofthe printed impression on the Sheet with relation to a margin of thesheet also was restricted.

An object of the present invention is to provide a machine arranged toreceive a sheet of any desirable width and to print upon it at anydesirable location thereon with respect to a margin of the sheet.

For this purpose, those elements of the machine disposed above the bedor table adapted to support the sheet are so supported thereabove as toprovide an unobstructed space above the bed which extends from theprinting center to the extreme right hand edge of the machine; and thepaper sheet orother work is adapted to be inserted in said space and mayextend indefinitely to the right beyond the machine. Said unobstructedspace extends also suitably to the left, if the printing center topermit impressions to be made on the sheet at any desirable distancefrom the left hand margin of the sheet. Provision is made fo-r extendingthe sheet yet further toward the left of the printing center, whendesired; and this constitutes another object of the invention.

A further object of the invention is to provide means to receive asheet, and especially a wide sheet, as it is fed under the printinghead, and cause it automatically and llty its own movement to be formedinto a ro The receiving and roll-forming means comprises, -essentially,a stationary scrollshaped device into which the sheet is guided and bywhich it is caused to be ieXed into roll form and the movement of thepaper sheet 1s utilized to build up the roll. The roll forming means, insome instances, may serve also as a holder from which the paper sheet,in roll form, is withdrawn to be printed upon.

For printing upon wide sheets, a plurality of paper feed-rolls areprovided, located on opposite sides of the printing head, and the paperis adapted to be fed, step by step, past the printing head and into therollforming scroll by said feed rolls. For printing narrow sheets, asmailer lists, it is desirable to employ other sheet feeding means moreadvantageously disposed with respect to the printing head; and thisconstitutes a further object of the invention.

In carrying out this feature of the invention, the narrow sheet feedingroll is placed in line with the printing center of the machine and meansare provided whereby the roll is actuated to feed the sheet outwardlyfrom the scroll. All feeding rolls are arranged to be operated from acommon operating member and means are provided for rendering one orl theother set of rolls inoperative at will.

It is desirable to print the individual characters borne by the stencilson a sheet with predetermined spacing thereof and it may be desirable tovary the spacing, for separate sheets.

Consequently, a further object of the invention is to provide sheetfeeding means by which the feeding of the sheet may be minutelyadjusted; and the sheet may be fed forward in small or large steps, asdesired, throughout a comparatively great variationof distance, as forinstance, from one eighth inch to four inches.

A further object of my invention is the provision of means by which themachine is automatically adjusted to print upon sheets or Work which mayvary greatly in thickness, as from a single sheet to a thick maga- Zine,and to print uniformly upon all work regardless of the thicknessthereof.

Brieliy the means by which this result is attained comprises apower-actuated variable-stroke anvil adapted to engage the work to beprinted upon and move it upwardly into printing position and against anabutment.

A further object is to provide a print-ing head adapted so to receive anumbering or dating attachment that the characters borne by it may beprinted either before, after, or bet-Ween characters printed from thestencils.

A yet further object of the invention is the provision of anink-spreading device arranged both for automatic and manual operation.

As above set forth, it may be desirable to feed sheets to be printedupon past the printing head in opposite directions and in thisconnection it is desirable that the impressions printed thereon be madeto read in the proper order.

Consequently, a further object of this invention is the provision ofmeans by which the stencils may be deposited from trays into the machineand moved past the printing head in relatively reversed positions andreplaced in trays in the order in which they were originally removedtherefrom.

The means by which this result is attained comprises a stencil holder inwhich the stencils are received from the trays always in the samerelative position, but which is reversible so that the stencil may befed from the holder past the printing` head relatively reversed inposition.

A receiver for the used stencils is also adapted to be reversible sothat the used stencils may be deposited therein always in the samerelative position: that is the top edge of the stencil will be at thefront face of the receiver, and the stencils may be replaced in traysalways in the same order.

A further object is to: provide the reversible stencil receiver withmeans adaptingl it to be inclined relatively to its support whereby tofacilitate the removal of stencils; and manually controlled means tolock it in upright position to its support- A further object of theinvention is generally to improve the construction and operation of amachine of the class described.

Fig. 1 is a front elevation of a printing machine embodying myinvention.

Fig. 2 is a side sectional elevation along` lines 2 2 of Fig. 1 with thelower portion of the machine broken away.

Fig. 3 is a plan view of the bed of the inachine taken along line 3-3 ofFig. 2.

Fig. 4 is a vert-ical sectional detail of the printing head and anviltaken along line 4 4 of F 2.

Fig. 5 is a transverse vertical sectional detail of the printing headand anvil taken along line 5 5 of Fig. 1.

Fig. (5 is a sectional plan detail of the stencil receiver and itslocking device, taken along line (iw-6 of Fig. l.

Fig. 7 is a sectional detail of the friction clutch connecting themovable anvil with its actuating means.

, Fig. 8 is a sectional detail along line 8 8 of Fig. 7.

Fig. 9 is a sectional detail of the ratchet clutch interposed betweenthe paper feed rolls and the actuating means therefor.

Fig. 10 is an end detail of the clutch of Fig. 9 with the end plate andgear removed.

Figs. 11 and 12 are side and transverse sectional details, respectively,of the printing head platen and its clamping means.

Fig. 13 is a transverse sectional view of the platen.

Fig. 14 is a plan detail of the platen.

Fig. 15 is a side view of a numbering attachment adapted removably to besecured to the printing head.

Fig. 16 is a side view of a dating` or other printing attachment adaptedremovably to be secured to the printing head.

Fig. 17 isa detail illustrating the printing head inking device.

Fig. 18 is a detail illustrating the reciproeatory ink-spreading roll.

Fig. 19 is a plan detail of the supporting frame for the feeding-rolls.

As here shown the printing machine einbodying my invention includes thebed or table 10 supported upon the frame 11. A vertically reciprocableprinting head 12 and a vertically reciprocable anvil 13, bothhereinafter more fully to be described, are disposed on opposite sidesof said bed and to one side of the middle thereof and are adapted toreceive between them the stencils and the work upon which the.characters borne by the stencils are adapted to be impressed.

Stencils are adapted to be retained in a vertical pile in a stencilholder disposed in line with the printing head and anvil on the oppositeside of and above said bed and stencils are adapted to be abstracted oneb v one from the bottom of the pile and moved into printing positionbetween the printing head and anvil and subsequently moved to anddeposited in a stencil receiver arranged on the left of the printinghead.

Said stencil holder is formed 0f the two vertical corner members 14-secured in spaced relation to the front and rear bottoni plates 15 andadapted to engage the top and side edges of the stencils. Averticallyextended plate 1G rises from the rear bottom plate 15 and isadapted to engage the ra arenaria edge of the bottom stencil. A. bracket17 is secured to the front faces of said corner members 14 and a guidemember 18 is hinged thereto which is adapted to be moved into engagementwith the top of the stencils, normally contained in a stencil holdingtray, and then moved together with the tray and its stencils, into avertical position, whereby to guide the stencils from the tray into theholder.

The stencil holder is supported in position over the bed of the machineby the plate 19 which extends forward from the rear bar 20 which bar issupported by the frame of the machine somewhat above the level of thebed 10.

For printing on pay roll sheets and the like, for instance, the sheetmay be fed forn ward into the machine. For printing mailer lists forinstance, the sheet may be fed outward from the machine. Consequently,it is desirable that the stencils be moved through the machine withtheir top edges, say, directed toward the front of the machine, forprinting on sheets fed in one direction, and be moved through themachine with their top edges directed toward the rear of the machine forprinting on sheets fed in the opposite direction.

For this purpose the stencil holder is removably secured to saidsupporting plate 19 by the two bolts or screws 21, and said bolts are sodisposed that the holder may be reversed in position on said plate byremoving said bolts and secured thereto in reversed position by the samebolts.

Said supporting plate 19 is formed with the lateral extension 22 formedwith the slidegroove 28 therein which extends beneath the stencilholder, and a slide 24 is movably received in said groove. Said slide isformed with the raised side-portions 25 which extend above the top ofsaid supporting plate. Said raised portions are formed with thesubstantially vertical forward edges 25a adapted to engage the end ofthe lowermost stencil in the holder and push it from the pile intogrooves in a stencil track. Said slide is formed with the somewhatupwardly inclined faces 25b to the rear of said stencil engaging edge25a the function of which is to raise the pile of stencils above thelowermost stencil whereby to facilitate the removal of the lowermoststencil from the pile and prevent the catching of the lowermost stencilwith the one next above. The slide is also formed with the longitudinalgroove or depression 26 between the two raised portions 25 adapted toreceive the window of the stencil and prevent its contact with the bodyof the slide. Said slide holder is adapted to be reciprocated byconnections with the horizontal shaft 28 mounted in bearings carried bythe frame of the machine; and said shaft is adapted to be angularlyreciprocated to actuate all of the operating` elements of the machine.

The power-actuated means by which said shaft 28 is reciprocatedcomprises the motor device 80, old in the art, and is or may beessentially the same as that illustrated in my Patent No. 935156. Saiddevice 30 has the connecting rod 31 which is pivotally con nected withthe arm 32 extended from and fixed to said operating shaft 28. Saiddevice 80 is adapted to reciprocate said connecting rod and therebyreciprocate said shaft 28.

The means operatively connecting said shaft 28 with the slide 24includes the gearsector 38 fixed on the end of said shaft 28; and saidsector meshes with a corresponding gear-sector 34 fixed to the end of avertical shaft 35 supported in bearings 36. Said vertical shaft 35extends above the bed of the machine and an arm 87 is fixed theretowhich extends above said slide 24. The end of said arm is formed withthe slot 38 therein having the parallel side-walls 382L therein; andsaid slot forms guide ways for a slide block 39 pivoted on the pin 40which is fixed in and extended above said slide 24. It is obvious thatas said arm 87 is reciprocated said slide 24 also will be reciprocated.

The stencils are pushed from the stencil holder into a track comprisingthe two parallel spaced rails 41 having the stencil-receiving grooves 42in their opposite side faces; and the bottoms of said grooves aresubstantially in line with top face of said plate 19. The railscomprising said track are secured to said plate and extend to and aredisposed on each side of and between said printing head and anvil andspaced above the bed to admit the passage of the work to be printed on.Said track extends beyond said printing head and anvil toward the leftof the machine and terminates in the member 45 secured by bolts 46 tothe bed of the machine, and into which the stencils are projected tofall into a stencil receiver.

The stencil receiver is rotatably mounted upon a shaft 47 fixed in themember 48 and said member is pivoted on the pin 49 to the supportingbracket 50 carried by the frame of the machine. The construction is suchthat the receiver may be tilted about its pivot for the convenientremoval of stencils therein contained.

The stencil receiver comprises the base member 51 rotatably disposed onsaid shaft 47 and resting on said member 48. A similar intermediatemember 52 is spaced above said base member and is rotatably disposed onthe upper end of said shaft. Pairs of spaced side bars 53 are secured tothe front and rear faces of said base and intermediate members andsingle end-bars 54 are secured to the side faces of said members andextend above said intern'iediate member to form a skeleton container inwhich the stencils are deposited.

The bars e3 of each pair of side members are connected at the top by thecross members 53a which are adapted to engage the front and rear outer-faces of said memlgier 45 whereby laterally to retain the receiver invertical position beneath said member'.

A stencil supporting platform 55 is freely movable within said guidebars and is supported by the rod 56 which extends upward from the block57 to which said rod is secured. Said block 57 is slidable between therear pair of side guide bars and the weight of the platform and stencilssupported thereon is adapted to be counterbalanced by the tensile spring5S which is connected between said block 57 and the rear cross member53, rllhe arrangement is such that said spring 5S is adapted to yield inproportion to the weight, and consequently min'iber, of stencilssupported on the platform so that the top of a pile containing anynumber of stencils within the capacity of the receiver is maintainedpractically at a fixed distance below the top thereof.

The stencil receiver is adapted to swing outwardly about its pivot 49for the removal of the stencils, and is adapted also to be rotated aboutthe supporting shaft 457, when desired, to facilitate the replacement ofthe stencil-s in proper order in the stencil holding trays. A centeringmember 59 is extended laterally from the frame of the machine and hasthe slot 60 therein adapted to receive one of said end guide bars -'tthereby properly to align the receiver in stencil receiving position.

The stencil receiver is locked in upright position by the bell cranklever pivoted to the fran'ie of the machine at 6l and having a` lockingarm 62 with its projections 62 adapted to engage one of said sideguidebars 54 to lock the receiver in position (see Fig. 6); and spring63 serves removably to hold said locking` arm in engagement with thereceiver. The other arm 64E of said bell crank lever extends in the pathof movement of an arm 65 fixed to the end of a vertical rod 66 wl ich isjournalled in bearings 67 carried by the frame of the machine, and isprovided with the handle 68 at its upper end. By rotating said rod in aclockwise direction, the arm 65 carried by it is caused to engage thearm 64 of the bell crank lever and thereby move the other arm 66 awayfrom locking engagement with the stencil receiver. A pin 69 engages aprojecting component of said arm 65 there-- by to limit the movement ofsaid bell crank lever in a locking direction.

1t will be noted that the stencil holder and its supporting plate, andthe stencil track is spaced above the bed of the machine so that anunobstructed space is provided in which the paper sheet or other matteradapted to receive the impressed characters may be inserted; and theextent to which the paper sheet or other work may extend to the right ofthe printingr head is not limited. On the left of the printing head thesheet may extend to the member 45. Ordinarily the space between theprinting head and member 45 is ample for all practical requirements.However, for extraordinary conditions the stencil receiver may bedetached from the machine and its distance from the printing headfurther extended by interposing suitable rail extensions and supportingdevice not necessarily shown.

iin important feature of the invention is the means for receiving asheet fed into the machine and automatically guiding it to assume rollform by the movement of the sheet itself. For this purpose a slot oropening 75 is provided between the rear edge of the bed 10 and the backbar 20 of the machine through which the sheet is adapted to pass, andthe roll-forming means is disposed below said slot. The roll-formingmeans comprises a plurality of scrollshaped members formed of stripmaterial and having the circular portions 76 adapted to flex the sheetinto roll form and support it. rThe scroll members are provided with endportions 77 which are extended through the slot 75 and forwardlydirected above the bed 10. A sheet is adapted to be guided between theends 77 of the scroll members into the scrolls. As the sheet is fedtherein the shape of the scrolls causes the end thereof to be flexedinto circular form and eventually into a roll. The movement of the sheetcauses the successive turns of the roll to be formed, and the roll maycomprise several turns or layers which will be more or less looselyformed. The ends 76il of the scroll members serve to prevent the sheetfrom leaving` the scroll at the entrance thereto.

The adjacent faces of the bed 10 and bar 2O are formed with the grooves78 therein and each scroll member is formed with the projectingcomponents 79 adapted to be slidably received in said grooves. Theresiliency of the strips comprising each member is suflicient to causethe members frictionally to be retained in any adjusted position belowsaid slot 75. Any desirable number of scroll members may be employed andordinarily three or four are sufficient. Said members may be relativelyclosely or widely spaced, as desired, to receive either narrow or widesheets. The printed and rolled sheet may be withdrawn from theroll-forming means from one end thereof, or it may be easily removed bydrawing it back toward the operator.

When the paper is fed in the reverse direction, or outwardly from themachine, the rolled sheet may be placed in the roll-forming means to beunrolled and fed between the printing head and anvil; or a roll of papermay be suspended below the slot 75.

Relatively wide sheets, as used for pay rolls, and also relativelynarrow sheets, as mailer lists, are adapted to be engaged by feedingmechanism and advanced beneath the printing head; and two sets of feedrolls are provided which ar-e so arranged that when one set is used theother set may be moved away from operative position.

For feeding the paper step by step forward into the machine two feedrolls 80 having knurled paper-engaging faces are provided which, when inwork-engaging position, protrude through slots 81 in the bed of themachine on opposite sides and somewhat to the rear of the printing headand anvil. In this connection it will be noted that the bed 10 is formedwith a plurality of ribs 81a adjacent the printing head and anvil whichare extended in the direction of feed of the paper and serve to supportthe paper and raise that portion adapted to receive the impression abovethe bed and in proximity to the stencils in the stencil track.

Said feed rolls 80 are fixed to the shaft 82 which is journalled in afeed roll carrier comprising the hub-portion 84 and the parallel arms 83integral with and extended from the ends of said hub-portion. Saidcarrier is supported for reciprocation on the feed roll operating shaft85; and said shaft is journalled in bearings 86 of the frame 87 securedto the under side of the bed. rfhis construction is more clearly shown1n Fig. 19.

A gear 82a is fixed to the end of said feed roll shaft 82 beyond one ofsaid arms and is in mesh with an idler gear 88 journalled on the pin 89extended from said arm. Said idler gear, in turn, is in mesh with adriving gear 90 fixed to that portion of said driving shaft 85 whichextends beyond said arm 83. It will be seen that as said shaft 85 isrotated, the feed rollers also will rotate.

For feeding mailer strips and the like a single feed roll 92 is'disposed mainly below the bed of the machine and in front of and in linewith the center of the printing head. The bed is formed with adepression 10a therein and said roll 92 extends through a slot 93therein sufficiently to engage the paper strip and yet be below the mainsurface of the bed 10. Said feed roll is fixed to a shaft 95 which isrotatably supported in bearing member-s 86L depending from the undersideof the bed 10. Said shaft eX- tends toward the left of the printingcenter of the machine and a gear 97 is fixed to its end-portion. Saidgear is in mesh with a gear 98 fixed to the end portion of the feed rolloperating shaft 85; and the arrangement is such that said driving shaftcauses both the feed roll 92 and the feed rolls 80 ,simultaneously to beactuated, although in relatively reversed directions.

Said reverse feed roll 92 is adapted to remain rotatably fixed in theposition above described and is caused to engage a paper sheet only whendesired, by means of an attachment hereinafter to be described. The feedrolls 80, however, are adapted to be raised and lowered to and fromsheet-engaging position by rocking said arms 83 about the operatingshaft 85. Since the arms are concentric with the drive shaft a change inangular position of the arms is accomplished without change in alignmentof the gears connecting the operating shaft with the feed rolls. One ofsaid arms has an extension 83a which is adapted to engage a. stop 99depending from the under side of tie bed. An extension 100 of said armis forwardly directed and serves as a handle member by which said feedroll carrier may be rocked to move said feed rolls into and out ofoperative position. Said extension is provided with a pin which isdisposed in an Lshaped slot 101 in a latch-member 102 pivoted to thesupporting ear 103 disposed below the bed of the machine. Said latchmember serves to lock the feed roll carrier with the feed rolls inraised position and said carrier and feed rolls will drop by gravity toassume a low position in which the feed rolls are out of operativeposition when the latch member is tripped; and the latch member willhold the feed rolls from further downward movement.

Printing on narrow sheets of paper may be accomplished by feeding thesheet outwardly from the machine by the single feed roll 92 and for thispurpose said forward feed rolls 8O will have been lowered. Aspring-pressed follower roll 10-1 is employed to engage the paper sheetand press it in engagement with said feed roll 92. Said follower roll104 is pivoted between the arms 105 of a supporting member which isfixed to and extends from a shaft 105. Said shaft is rotatably supportedin the arms 107 of a bracket 108 which is removably .secured by thescrews 109 to the top face of the'. bed 10. A spring 110 encircles saidshaft 106 between said arms 107 and has one end connected to saidbracket and the other end connected to said shaft by which a tension isapplied to cause the yielding engagement of said follower roll 1/04 witha sheet over the said feed roll 92. A handle 111 fixed to the end ofsaid shaft provides means by which the shaft may be rotated against theaction of said spring to raise said follower roll 104 from engagementwith the paper sheet. Said shaft 106 extends from said bracket 108sufficiently to admit the impression to be recorded a suitable distancein from the edge of the sheet; and this distance may be increased by theprovision of a longer follower roll supporting shaft and securing thebracket 108 further to the left of the printing center of the machine.When not in use the attachment above set forth may be removed.

An important feature of the invention is the means by which the feedingof the sheet under the printing head may be minutely adjusted throughouta wide range.

Toaccomplish this result said feed roll operating shaft is arranged tobe angularly moved step by step, always in the same direction, by theshaft 28 which is adapted to reciprocate throughout a fixed angulardisplacement by the actuating device 30. For this purpose a ratchetclutch is arranged on the end of said shaft 85. Said clutch comprisesthe housing fixed to said shaft and formed with the annular recess 116in which the other component of the clutch is received. Said componentcomprises the disc 117 having a plurality of notches 118 therein (seeFig. 10) in which spring-pressed rollers 119 are disposed; and thearrangement is such that the two clutch components will be clutchedtogether for clockwise rotation (Fig. 9) and the disc 117 will be freeto rotate in the opposite direction independently of said housing. Saidl disc 117 is rotatably supported on the hub 120 of the housing withinthe recess 116 and a cover plate 121 is adapted to enclose said disctherein. Said disc 117 is formed with a hub 122 extended through anaxial aperture in the cover plate and a gear 123 is fixed thereon whichis in mesh with an internally-toothed sector 124 pivotally mounted on apin 125 extended laterally from the sector-supporting arm 126 of theframe 87. Said sector is adapted to be oscillated about the pin 125 andat each movement in one direction will move the shaft 85 and at eachreverse movement it will move independently of said shaft, due to theinterposed ratchet clutch.

The hub 127 of said sector is formed with the brake-sector 128 and abrake shoe 129 is held in yielding engagement with the periphery thereofby the spring 130 carried by the rod 131 adjustably threaded into saidarm 126 and serves to prevent undesired motion of the sector independentof its actu ating mechanism.

The actuating mechanism is arranged to admit of the precise control ofthe extent of the sheet fed per stroke. Said hub 127 of the sector isformed with the non-radial lug 132 into which the threaded rod 133 isfixed. A member 134 having conically recessed end-faces is slidablyreceived on said rod 133 and is adapted to be clamped in any positionalong the length of said rod by and between the two check nuts 135threaded on said rod. Said check nuts have conically shaped end faceswhich enter the corresponding recesses in said member 134 to hold itagainst lateral as well as axial movement. A connecting rod 136, bent toclear other components of the machine, is pivotally connected with saidmember by the pin 137 and extends to and is removably connected by thepin 138 to the arm 139 fixed to the operating shaft 28. Said arm isprovided with a plurality of holes 140 therein adapted to receive saidpin 138 whereby said connecting rod may be connected with said arm atvarying leverages therewith, by which thel coarse adjustments of thepaper feed are obtained. It is obvious that, if said connecting rod ismoved from connection with said arm at an upper hole to connectiontherewith at a lower hole, the connecting rod will be reciprocatedthrough a greater distance than at an upper hole and consequently thesector 124 will be oscillated through a greater angular displacement.

Minute adjustments of the paper feed are carried out by varying theposition of said member 134 on said rod 133 and inasmuch as the threadon said rod is comparatively fine., exceedingly minute adjustments ofthe feed may be obtained. A change of feed beyond the capacity of saidrod is carried out by changing the point of connection of saidconnecting rod 13G with said arm 139 and the final accurate adjustmentmay then be obtained on said rod 133.

The paper sheet or other work on which the stenciled characters are tobe impressed, as before stated` is adapted to be placed beneath thestencil tra'ck and over the anvil 13. The printing head and the anvilare so arranged that the thickness of the work may vary within widelimits. as from a single thin sheet to a plurality of sheets or amagazine one half inch or more in thickness and yet a uniform printingpressure will be applied, so that, for any thickness of work theimpressed characters will be of uniform legibility. To accomplish thisresult the anvil is arranged to have a variable extent of movement andto be automatically responsive to variations in thickness of the workwhereby to hold the surface of the work to be printed on always in afixed position for receiving the stencil characters impressed by theprinting head. which latter is arranged to have a uniform, thoughmanuallyadjustable` extent of movement.

The anvil 13 is vertically movably disposed beneath the bed 10 of themachine and is adapted to` be moved upwardly through a slot in said bedto engage the work and raise and hold the work in proper position itlil' beneath the stencil to receive the impression. Said anvil has theenlarged upper end portion 1116 which is formed with a dove-tailed slot147 therein adapted removably to receive a resilient anvil pad. Said padco1nprises the block 148 of rubber or other suitable resilient material,preferably having` side-walls tapering inwardly and upwardly from itsbase. Said block is secured to a rigid backing strip 149 which has aplurality of perforations 150 adapted to be filled with the materialcomposing the block whereby an integral structure results; and the sidewalls o-f said strip 148 are tapered to [it within the tapered slot inthe anvil.

A vertical slot 151 is formed in the anvil below the head or pad endthereof and the parallel side walls 151a thereof slidably engage theguide block 152 which is disposed in said slot and secured by the screw153 to the arm 154, depending below the bed of the machine. Thisarrangement admits of the guided vertical movement of the anvil; and theanvil is further supported by its dispoe sition between the face 154eLof said arm 15a and the washer' 155 arranged on said screw 153.

Said anvil is arranged to he reciprocated in a vertical plane by theshaft 156 which is adapted to be angularly oscillated by meanshereinafter to be described. An an vil-operating cam 157 having' ascroll-shaped cam face is fixed to said shaft 156 in line with thevertical axis of the anvil; and the anvil is formed with the two arms158 between which said cam is disposed. Said arms 158 terminate in theforked extensions 159 which straddle said shaft 156 on each side of thecam; and said forked ends of the anvil and said shaft cooperate to guidethe anvil for movement in a vertical plane.

A wear block 16() of wood, libre or the like is vertically adjustablydisposed between said arms 158 of the anvil and is adapted to engagewith the cam face of the cam 157. The position of said block within saidslot and consequently the distance of the anvil face below the bed ofthe machine is adjusted by the thrust-screw 161 threaded into the bodyof the anvil and having the lat head 161CL which engages the top face ofsaid block and which is adapted to receive the thrust of the cam. Saidwear block is secured in the anvil by the bolt 162 which passes throughan elongated slot 163 in the block and serves to clamp the block againsta back plate 164:, which plate is secured to the arms 158 of the anvilby the screws 165.

lhile said cam 157 is so arranged as to provide for moving the anvilthrough its extreme extent of vertical movement, means are interposed inthe connections between said shaft 156 and the operating shaft 28, whichis arranged to oscillate through an invariable angular displacement,whereby to permit a variable extent of oscillatory movement of saidlatter shaft 156 governed by the pressure exerted by the anvil upon thework, for the purpose of obtaining a uniform printing impression uponwork which may vary greatly in thickness. Said means includes a frictionclutch interposed in the connection between said shaft 156 and saidshaft 28.

Said friction clutch is carried by said shaft 156 at one end thereof andincludes the inner clutch component comprising the drinn 166 fixed tosaid shaft, and the outer clutch component or shell 167 having theinternal recess 168 in which said drum 166 is rotatably received. Saidshaft 156 bcyond said drum is formen with the reduced end portion 156awhich is rotatably received in the bushing 169 which fits within recessof the frame of the machine and is secured thereto by screws 170 passedthrough the outwardly extended fiange 171 of the bushing and threadedinto said frame. 1n this connection it should be noticed that theexternal diameter of the body-portion of said bushing, and consequentlythe recess in the frame in which said bushing is received, is greaterthan the diameter of the body portion of said shaft, or any integralenlargement thereof, whereby the shaft may be inserted and withdrawnfrom the machine through the bushing aperture in the frame.

Said shell 167 of the clutch is freely ron tatably mounted on thereduced end-portion 1565L of said shaft and a pinion 172 is fixed to itshub 173. Said pinion is in mesh with a gear sector 171- fixed to saidoperating shaft 28 and consequently as said shaft and its sector areoscillated, said shell 167 will be correspondingly oscillated.

Said drum 166 is formed with two diametrical, parallel sided recesses175 in its periphery and two friction blocks 176, of wood, fibre or thelike are received therein; and said blocks are formed each with anarcuate face 176iL adapted frictionally to engage yieldingly the innerperipheral face 168aN of said Shell. Said blocks are pressed intoyielding engagement with said shell by the compression spring 177 whichis received in a recess 178 and engages the bottom faces of said blocks.

The strength of said spring` 177 is arranged to be such that normallythe frictional engagement between the two clutch components through theblocks 17 6 is sufi",- cient to move the two components in unison,without slipping: and consequently the shaft 156 will be oscillated withthe operating shaft 28. "When, however, said shaft 156 offers apredetermined amount of resistance to rotary movement, then slipping isdesigned to take place between the clutch components and the shaft 28will continue its movement without a further movement of said shaft 156.

The anvil is provided with a laterally extended pressure finger 180which is disposed beneath the rear rail 41 of the stencil track andslightly below the face of the pad 1-1-8.

The material to be printed, as the sheet A, Figs. 4E and 5, is raised bythe anvil and moved upwardly toward a stencil supported in the stenciltrack. Vhen the sheet has been so moved as to dispose its top surface inclose proximity to or engagement with the stencil, said finger 180 isadapted to eugage the sheet and compress: it against a stencil rail 41.Previous to this compression, the anvil has offered a negligibleresistance to the rotary movement of said shaft 156 and consequentlyboth clutch components will have rotated without relative slipping. Acontinued rotary movement of said shaft in the same direction, however,will cause said pressure nger forcibly to compress the paper sheetagainst the stencil rail and consequently to offer such resistance tofurther upward motion of t-he anvil as to cause the slipping of theclutch. The shaft 156 consequently will not be rotated further while theshaft 28 will continue to move to its limit of movement in onedirection. Before said shaft 28 is moved in the reverse direction theprinting head is arranged to descend and impress on the sheet thecharacters borne on the stencil. When the shaft 28 is moved in thereverse direction, the shaft 156 will also be reversely moved and theanvil consequently will move downward by its weight, and the sheet A maybe advanced or withdrawn from between the printing head and anvil. Itwill be noted that, with any thickness of work, the anvil and printinghead will move outwardly at the same instant.

A stop member having the extended arm 181 is fixed to said shaft 156 andmay engage the resilient disc 182 carried by the pin 183 fixed to theframe of the machine whereby positively to hold the shaft 156 fromrotation beyond fixed limits.

With the arrangement above set forth it may be seen that the thicknessof the work printed on may vary within wide limits, say from thethinnest sheet to a magazine or a letter one half inch or more inthickness, yet the upper surface of the work will always be moved intoproper relation with the stencil for printing and therefore the printedimpression will be made with substantially equal pressure andconsequently will be uniform for all thickness of work within the rangeof the machine.

The printing head 12 is vertically movably supported above the bed ofthe machine, and above the anvil, by the arms 185 which are secured tothe back bar 19 and extend upward and forward over said bed.

Said arms terminate in the opposed guideways 186 having the verticalgrooves 187 therein in which the printing head is slidably received.

The printing head 12 comprises a rectangular frame having the top member121L and bottom member 12b, and the two side niembers 12e. Said membersare formed with the vertical tongues 12d which arel slidably received inthe grooves 187 of the guide-ways 186 and by which the printing head issupported and guided for movement in a vertical plane.

Said printing' head is reciproeated in its guideways by the` lever 188which is fixed to the shaft 189 journalled in the arms 185. One end ofsaid arm is downwardly extended to the rear of the back bar 20 of themachine, and is pivotally connected by the pin 190 to the adjustableyoke 191, the other end of which yoke is pivotally connected by the pin192 to the arm 193 fixed to the operating shaft 28 and by which saidlever is reciproeated. The other end of said lever 188 extends withinthe frame of the printing head and is disposed between and pivotallyconnected by the pin 194 to the two arms 195 of the yoke 196. The otherend of said yoke also is formed with two spaced apart arms 197 betweenwhich the adjusting screw 198 is disposed and to which the yoke ispivotally connected by the pin 199 which is passed through said arms andscrew. Said adjusting screw is adjustably disposed in the top member 12aof the printing head and is locked in position thereon by the lock nuts200 disposed on opposite sides of said top member. rlhe position of theface of the printing head with respect to the stencils in the stenciltrack, and consequently the printing pressure, may be adjusted byraising and lowering the printing head by means of said adjusting screw.

Said pivot pins 194 and 199 are free for axial movement within thearmsof said yoke 196 but extend beyond the yoke sufficiently to engage theinner face of the side members 12c of the frame upon a slight axialdisplacement, whereby to be retained in position without the usel ofpins or the equivalent.

A cover plate 201 is secured to the front face of the frame to concealthe mechanism therein disposed; and a plate 202 is also secured to thefront faces of the guide ways 186.

rlhe bottom member 12b of the frame is formed with the dove tailedtongue 203 adapted removably to receive a printing pad, and for somepurposes, printing characters, or both.

The printing pad is similar in construction to and may beinterchangeable with the ranvil pad and comprises a resilient block orstrip 2011 of rubber or the like of lil a length sufficient to cover thewindow in the stencil or any suitable portion of it, and is secured tothe metallic backing strip 205 which has a plurality of perforations206. The block, here shown as formed of rubber, has projections enteringsaid perforations and the block is vulcanized with the backing strip inplace whereby to form an integral structure.

Said printing pad is secured removably to the lower member 12b of theframe by the clamping member comprisino the two clamping plates 20-7formed with complemental dove-tailed groove-portions 208 in their lowerfaces adapted to receive the backing strip 205 of the printing pad; andare also formed with complemental grooveportions 209 in their upperfaces adapted to receive the tongue 203 of the frame. Said plates 207are secured to both the pad and the frame by the clamping screws 210connecting the plates at the middle thereof, and the screws 211connecting the plates at the top thereof. Compression springs 212encircle said screws 211 and tend to separate the plates about thepivotal line formed by said screws 210 whereby said clamping member withthe printing pad may be removed from the printing head withoutdisengagement of the printing pad.

For some purposes it is desirable to print on the work not only thecharacters borne by the stencil but, in addition, other characters asdates, numbers, which may be consecutive; and the like; and suchprinting may be performed through suitable openings in the stencils.

Fig. 16 illustrates an attachment adapted to be removably secured to theprinting head for printing one or more fixed characters, and Fig. 15illustrates a similar attachment for printing consecutive numbers andthe like.

In Fig. 16 the printing characters are carried by the plate 213 securedto the angle member 2132 A fiXed clamping member 214 is secured to thetop of said angle member and a movable clamping member 215 is carried byscrews 216 threaded in said fixed clamping member. Said clamping membershave complementary dove-tail groove-portions 217 engageable with thetongue 203 of the printing head.

In Fig. 15 a date or number wheel or wheels 218 and the operating lever219 are shown; the structure being otherwise similar to that illustratedin Fig. 16.

The attachments above described may be placed to occupy any position inthe printing face either at one end, as in Fig. y1, or in. the middle,and when in the latter position, two shorter printing pads (notnecessarily shown) may be placed on opposite sides of the attachment.

The numbering attachment is illustrated applied to the machine in Fig. 1with mechanism for advancing it one or more numbers each stroke of theprinting head.

Inking mechanism is provided by which the face of the inking pad, andalso the face of any printing characters carried by the printing headmay be inked at every stroke of the printing head. Said inking mechanismis in the form of a unitary device which is applicable to and removablefrom the machine as a unit. The components of said device are carried byand between the arms 225 of a frame removably disposed above and betweenthe arms 185 supporting the printing head and its associated mechanismand secured to said arms 185 on the step-portions 226 thereof.

The inking-device includes the ink reservoir in the form of a hollowperforated cylinder 227 within which ink is adapted to be contained; theintermediate or spreading roll 228 and the ink roll 229. Said ink rolland reservoir are both driven from the spreading roll 228 with whichthey are in rolling contact at their peripheries.

The construction of the ink reservoir 227 is similar to that shown anddescribed in my Pate-nt No. 1,036,202, dated August 20, 1912. Said inkreservoir 227 is rotatably mounted on the shaft 230 which in turn isrotatably disposed in the open forks 231 of the arms 225 whereby thereservoir may be lifted out of the frame when desired. A wiper, notshown, is fixed to said shaft 230` within the cylinder and is arrangedto force ink through perforationsin the cylinder; and the shaft andcylinder are adapted to be rotated at slightly different angular speeds.For this purpose a gear 232 is fixed to said cylinder 227 which mesheswith a. gear 233 fixed to the shaft 234, which shaft is rotatablymounted in the bracket 235. A second gear 236 of slightly differentpitch diameter than said gear 233 is also fixed to said shaft 234 andconsequently is rotatable with said gear 233. Said gear 236 meshes witha gear 237 fixed to the shaft 230 of the ink cylinder. The gearing ratiobetweenI said pairs of gears 232 and 233, and 236 and 237 is arranged tobe slightly different so that a differential effect is produced, wherebythe rotation of the ink cylinder will cause a slightly different speedof rotation of the shaft 230. Said shaft 234 is adapted t0- slideaxially in its bearings whereby the gears 233 and 236 may be unmeshedfrom their cooperating gears associated with the ink-roll, when desired.

The inking roll 229, having the customary resilient surface, is carriedon the shaft 238 which is rotatably supported in the arms 239 of theframe of the inking device.

Said spreading roll 228 is arranged positively to be rotated in o-nedirection and also to be manually rotated. Said roll is lfixed llO Zito

on the shaft 240 which is rotatable and also axially movable in the arms225. A pinion 241 is fixed to the end of said shaft 240 and is ofconsiderable axial length whereby it may be in driving mesh with thegear 242 in any axially moved position of its shaft 240. Said gear 242is rotatably supported onv the stub shaft 243 carried by one of saidarms 185 and one component of a ratchet clutch 244 is fixed thereto. Apinion 245 is also rotatably mounted on said stub shaft and is fixed tothe other component of said clutch. Said pinion 245 is in mesh with thegear-sector 246 fixed to and oscillable with the shaft 189. It will beunderstood that with this arrangement the rolls of the inking devicewill be intermittently rotated always in the same direction formovements of said gear sector 246 in both directions. The arrangementalso admits of the manual rotation of the inking rolls.

The spreading roll 228 is arranged automatically and slowly t0 bereciprocated axially as it is rotated whereby to spread evenly on theink roll 229 the ink delivered to it from the ink reservoir 227. Themechanism by which this result is attained includes the worm 247 fixedto said shaft 240 of the spreading roll. Said worm is in mesh with aworm gear 248 rotatable on the screw post 249 fixed to frame 250. Saidframe is supported by said shaft 240 and has two arms 251 disposed onopposite sides of said worm 247 and in which arms said shaft isrotatable. Said frame 250 is also supported by and is slidable on therest 252 which is secured to the frame of the inking device. A link 253is eccentrically pivotally connected with said worm gear 248 by thescrew post 254. Said link is also pivotally connected with the arm 225of the frame of the inking device by the screw post 255.

rThe arrangement above described is such that as the shaft 240 isrotated,r the worm gear 248 and link 253 push and pull said shaft 240axially in its supporting bearings and consequently axially reciprocatethe spreading roll.

A handle 256 is fixed to the end of said shaft 240 beyond the worm 247and the worm gear frame 250` by which the spreading roll may be rotatedmanually.

Ink is transferred from the ink roll 229 to the face of the printinghead by the transfer roll 266 fixed to the shaft 261 which is rotatablysupported in arms 262 disposed on opposite sides of the printing head;and said arms are fixed to the shaft 263 disposed above the spreadingroll 228 and between it and the printing head, and pivotally supportedin extensions 264 of the arms 225. An arm 265 is fixed to and extendedfrom said shaft 263 and a spring 266 connected with said arm and the pin267 fixed in one of the guide ways for the printing head serves normallyto maintain the transfer roll in and return it to its outermost positionillustrated in Fig. 2.

rfhe transfer roll is arranged to roll over and deposit ink on the faceof the printing pad as said roll is moved inwardly to engage with andreceive a new coating o-f ink from the inking roll 229, and as saidprinting head is moving downward; and also as said roll is returned toits outermost position and said printing head is moving upward. Themechanism by which the transfer roll is moved between its two extremepositions includes the downwardly extended arm 268 (Fig. 17) fixed tosaid shaft 263 which has the cam roll 269 pivotally mounted on the pin270 fixed in its outer end-portion. A cam-arm 271 is fixed to andoscillated by said shaft 189. Said arm is formed with the hooked-portion272 upwardly extended about said cam roller 270; and said portion isformed with the cam-face 273 with which said cam roller 270 ismaintained in contact by the spring 266. Said cam face is so shapedthat` as said cam arm is moved in a downward direction it will move thetransfer roller from its outermost position into engagement with theinking roll 229; and the movements of said cam arm and printing head areso timed that as said roller and printing head are moved downward theroller will be in Contact with and roll over the face of the printingpad, thereby to deposit ink on the face of the pad.

Said cam face 273 joins the cam face 274 formed in the upper part of thehooked-portion 272 of the cam arm and is so shaped as to maintain thetransfer roll 260 in rolling contact with the inking roll 229 during theremaining portion of the. downward movement of said arm. When said camarm 271 is again moved upwardly the transfer roll will be returned bythe spring 266 to its outermost position, its rate of movement beingcontrolled by said cam-arm, and will again roll across the face of theprinting pad carried by the printing head and deposit ink thereon.

Arms 280 are downwardly -extended from the frame bearing the printinghead and inking mechanism. Said arms are disposed on opposite sides ofthe printing` head and are in contact with the inner rail 41 of thestencil track to receive the pressure exerted by the anvil against thework to be printed on and support the rail against verticaldisplacement. Other arms 281 have bell-crank levers 282 pivoted thereto,the outer ends of which to carry the pressure rollers 283 disposed abovethe feed rolls 8O and adapted t-o press the paper sheet to be printed oninto firm engagement with said feed rolls. Springs 284 connected betweenthe inner fil l itt l lil ends of said bell crank levers and the framebearing the printing head serve to provide the necessary pressure forsaid rolls.

The timing of the various components of the machine is such that theprinting head and the anvil move practically together and the anvil isarranged to be moved into proper position before the printing head ismoved into contact with the stencil. After the impression is fo-rmed,both the printing head and the anvil will move away from each otherpractically Simultaneously; the feed rolls will operate to advance thework and the stencil slide will push forward a new stencil and a usedstencil will be deposited in the stencil receiver.

I claim:

l. A stencil printing machine comprising a table, a stencil trackdisposed in approximately parallel relation with and spaced above saidtable, a stencil holder carried at one end of and above said track, asupport for said track and holder disposed in the rear of and in spacedrelation with said table and having an extension extended forwardly andconnected with said track and holder, the space between said track andtable being unobstructed in onel lateral direction therebeyond, wherebya sheet of indefinite width may be inserted between the table and track,and stationary sheet-engaging and roll-forming means disposed betweensaid table and support and beneath said support-extension andconstructed and arranged to receive the paper sheet from between thetrack and bed and shape it into roll form.

2. A stencil printing machine comprising a table, a stencil trackdisposed in approximately parallel relation wit-h and spaced above saidtable, a stencil holder carried at one end of and above said track, asupport for said track and holder disposed in the rear of and in spacedrelation with said table and having an extension extended forwardly andconnected with said track and holder, the space between said track andtable being unobstructed in one lateral direction therebeyond, whereby asheet of indefinite width may be inserted between the table and track,and a scroll open at at least one end disposed between said table andsupport and beneath said support-extension and in position to receive asheet from between the. track and table and shape the sheet into rollform.

3. A stencil printing machine having th-e combination of printingplatens, means to feed stencils intermittently between said platens,means to feed paper sheets of varying widths between the stencils andpla-tens for the printing of the sheets, and a stationary scroll havinga plurality of axially spaced scroll elements arranged to receive andengage the moving paper sheet and cause it to assume roll form, means tosupport said scroll elements in axial alignment, and means to hold saidscroll elements releasingly in axially adjusted positions.

4. A printing machine having printing means, means to feed a paper sheetpast the printing means, an axially extensible roll forming meansadapted to receive sheets of variable width and form them into rolls,and means tol hold said roll-forming means yieldingly in axialextensions thereof.

5. A printing machine having printing means, means to feed a paper sheetpast the printing means, an axially expansible and contractiblestationary roll forming means arranged to receive the paper sheet andform it int-o a roll, and means to hold said rollforming meansreleasingly in extended and also in contracted positions thereof.

6. A printing machine having a bed formed with a slot in it, printingmeans disposed above the bed in front of the slot and having supportingmeans extended above the bed and slot and connected with the bed at therear of the slot, a scroll disposed mainly beneath said slot and havingits outer end extended through said slot and above and directed towardthe front of said bed, and means to feed a paper sheet over the bed pastthe printing means and into said scroll.

7 A printing machine having a bed formed with a slot in it, a pluralityof scroll elements disposed mainly below said bed and having their outerends extended freely through the slot and directed forwardly and abovesaid bed, means to support said scroll elements in upright position inaxial alignment and for axial adjustment, said supporting meansincluding frame members having parallel and opposed spaced groovestherein, and resilient members carried by said scroll-elements anddisposed in yielding frictional engagement with the walls of saidgrooves, printing m-eans disposed forwardly of said slot, and means tofeed a sheet over said bed and past said printing means into said scrollelement.

8. A printing machine having printing means, two sheet-feeding meansselectively engageable, at will, with the paper sheet to feed it pastthe printing means, and common actuating mechanism for both sheetfeeding means.

9. A printing machine having printing means, two sheet-feeding rollsarranged to move a sheet past the printing means in opposite direction,common operating means for said rolls, and means to move one of saidrolls into and away from sheet engaging-position.

10. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a vertically reciprocable anvildisposed beneath said printing head adapted to engage the work and moveit upward into position for printing, and means governed by thethickness of the work to be printed to vary the stroke of said anvil.

11. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a vertically reciprocable anvildisposed beneath said printing head adapted to engage the work and moveit upward into position for printing, and means to vary the stroke ofsaid anvil.

12. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a vertically reciprocable anvildisposed beneath said printing head adapted to engage the work and moveit upward into position for printing, and means governed by thethickness of the work to be printed on to vary automatically the strokeof said anvil.

13. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a vertically reciprocable anvildisposed beneath said printing head adapted to engage the work and moveit upward into position for printing, and means to vary automaticallythe extent of upward movement of said anvil.

14. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a vertically reciprocable anvildisposed beneath said printing head adapted to engage the work and moveit upward into position for printing, and means to vary automaticallythe extent of upward movement of said anvil, comprising an operatingmember for said anvil, and means including a friction clutch connectingsaid member and anvil.

15. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a fixed abutment disposed below saidprinting head, a vertically reciprocable anvil disposed below saidprinting head adapted to move the work to be printed on upwardly intoengagement with Isaid abutment and means governed by pressure on saidanvil to prevent further upward movement of said anvil.

1G. A printing machine having a printing head adapted to reciprocatevertically between fixed limits, a fixed abutment dis posed below saidprinting head, a vertically reciprocable anvil disposed below saidprinting head adapted to move the work to be printed on upward intoengagement with said abutment, and means governed by pressure on saidanvil to prevent further upward movement of said anvil comprising anoperating member and connections including a friction clutch betweensaid operating member and anvil.

17. A printing machine comprising a stencil guide, a printing headdisposed above said guide adapted to reciprocate vertically into andaway from contact with a stencil held in said guide, a verticallyreciprocable anvil disposed beneath said guide adapted to engage thework to be printed on and move it upward into position beneath a stenciland against the guide, and means governed by the pressure between theguide and anvil to prevent further upward movement of said anvil.

18. A printing` machine having a vertically reciprocable printing head,a vertically reciprocable anvil disposed beneath said printing headadapted to engage the work and raise it into position for printing, andmeans to limit the extent of upward movement of said anvil comprising anabutment against which the work is raised, an operating member for saidanvil, and means connecting said member and anvil including a clutchadapted to slip when a predetermined pressure on the anvil is reached.

19. A printing machine including a vertically reciprocable printinghead, a vertically reciprocable anvil disposed beneath said printinghead, an angularly oscillable operating member, and means including aslipping clutch connecting said member and anvil.

20. A printing machine including a vertically reciprocable printinghead, a vertically reciprocable anvil disposed beneath said printinghead, a cam shaft having a cam surface in engagement with said anvil, aslipping clutch having one element fixed to said shaft and its otherelement free thereon, a gear carried by said free element, an angularlyoscillable shaft, and a gear sector fixed to said shaft meshing withsaid gear.

21. A stencil printing machine having the combination of a bed overwhich a paper sheet is adapted to be passed to be printed, winding meansfor the paper sheet, printing means and stencil feeding means bothdisposed forwardly of said winding means and above and free from saidbed, and supporting means for said printing and stencil feeding meansdisposed at the rear of and extended forwardly over said winding means.

22. A stencil printing machine having a bed, an arm carried by one endof said bed and extended forwardly thereover, printing means carried bysaid arm and disposed over and spaced free from said bed, and windingmeans for a paper sheet disposed under said arm and behind said printingmeans, said arrangement providing means to print and wind a paper sheetof unrestricted width.

23. A stencil printing machineJ having the combination of a bed, aprinting platen disposed above the bed, means to contain a llO stack ofstencils at one side of said printing platen and above and free fromsaid bed, roll-forming means disposed behind said platen and stencilcontainer, and supporting means for said stencil container disposed tothe rear of said roll-forming means, whereby to provide an unobstructedspace over said bed and beneath said stencil container.

24. A stencil printing machine including a stencil receiver adapted tohold stencils in a predetermined relation therein, means to deliver usedstencils to said receiver in such relation and also in a relativelyreversed relation, and means to reverse the position of said receiverfor the reception of relatively reversed stencils, whereby to receiveall stencils in the same predetermined relation and ,hold them in suchrelation therein.

25. A printing machine including a bed, printing means and a stencilholder disposed above said bed, means to guide stencils from said holderpast said printing means into a stencil receiver, a normally verticalstencil receiver and means supporting said stencil receiver arranged topermit it to be inclined from the vertical at Will.

26. A printing machine including a bed, printing means and a stencilholder disposed above said bed, means to guide stencils from said holderpast said printing means into a stencil receiver, a normally verticalstencil receiver, means supporting` said stencil receiver arranged topermit it to be inclined from the vertical at Will, and means to locksaid receiver in vertical position.

27. A printing machine including a bed, printing means and a stencilholder disposed above said bed, means to guide stencils from said holderpast said printing means into a ste-neil receiver, a normally verticalstencil receiver, means reversibly supporting said stencil receiverpivotally arranged to permit it to be inclined from the vertical aboutits pivot and reversed in position, and means to lock said receiver invertical position.

In testimony whereof, I have signed my name to this specification.

STERLING ELLIOTT.

